Objective : This study aims to compare the scope of practice of Korean Medicine doctors and western medicine doctors based on laws related to medical practice Method : We searched for laws related to medical practice using terminologies such as "Korean Medical practice", "Korean Medicine", "Principles of Korean Medicine", "western medicine", "Korean Medicine doctor", "western medicine doctor" at the national law information center(http://law.go.kr/main.html). Results : We categorized the laws we found into four categories: diagnosis, treatment, prescription, and all the other areas including public health. In diagnosis, both Korean Medicine doctors and western medicine doctors have a right to issue medical certificates including birth and death. However, diagnosis of a few specific diseases is allowed only to western medicine doctors. In treatment, laws related to emergency medicine and nursing at home were searched. Korean Medicine doctors and western medicine doctors are emergency care providers; however, most of emergency medicine can be done by western medicine doctors. In prescription, the scope of practice is divided by herbal medicine and western medicine. Finally, as public health professionals, both of them need to do lots of public health works. However, in some area such as vaccination, maternal and child health care, and industrial health, only western medicine doctors can practice. Conclusion : This study suggests that, in diagnosis, treatment, prescription, and all the other areas including public health, the scope of practice of Korean Medicine doctors and western medicine doctors has huge difference. There is also lack of consistency in current law, and some laws do not reflect current health care system and health care services.